// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_LINUX_FONT_DELEGATE_H_
#define UI_GFX_LINUX_FONT_DELEGATE_H_

#include <string>

//#include "base/memory/scoped_ptr.h"
#include "ui/gfx/font_render_params.h"
#include "ui/gfx/gfx_export.h"

namespace gfx {

// Allows a Linux platform-specific overriding of font preferences.
class GFX_EXPORT LinuxFontDelegate {
public:
    virtual ~LinuxFontDelegate() { }

    // Sets the dynamically loaded singleton that provides font preferences.
    // This pointer is not owned, and if this method is called a second time,
    // the first instance is not deleted.
    static void SetInstance(LinuxFontDelegate* instance);

    // Returns a LinuxFontDelegate instance for the toolkit used in
    // the user's desktop environment.
    //
    // Can return NULL, in case no toolkit has been set. (For example, if we're
    // running with the "--ash" flag.)
    static const LinuxFontDelegate* instance();

    // Returns the default font rendering settings.
    virtual FontRenderParams GetDefaultFontRenderParams() const = 0;

    // Returns details about the default UI font. |style_out| holds a bitfield of
    // gfx::Font::Style values.
    virtual void GetDefaultFontDescription(
        std::string* family_out,
        int* size_pixels_out,
        int* style_out,
        FontRenderParams* params_out) const = 0;
};

} // namespace gfx

#endif // UI_GFX_LINUX_FONT_DELEGATE_H_
